GSplus

Type	standalone
Classification	Community forks
Source	https://github.com/digarok/gsplus
Upstream	https://kegs.sourceforge.net/
Version	KEGS 1.38
Revision	digarok/gsplus@41e71031debb
Profiled	2026-03-29
Profile	YAML, JSON
Cores	gsplus
Systems	apple-iigs, apple-iie

Technical notes

Fork of KEGS (Kent's Emulated GS) by digarok. Cross-platform Apple IIGS emulator supporting ROM 01 (128K), ROM 03 (256K), and Apple //e (32K) ROMs. ROM version determined by file size at load time.

Batocera configgen (gsplusGenerator.py) sets g_cfg_rom_path to bios/ROM.03 by default (configurable via gsplus_bios_filename system setting).

Built-in Disk II controller PROM derived via XOR diffs from main ROM. Built-in HD SmartPort PROM (slot 7) hardcoded in source. Built-in character font (kegsfont.h), optional ROMX-compatible charrom loadable via config UI.

2 files | 1 required, 1 optional | 2 in repo, 0 missing | 1 with HLE fallback

ROM required in repo #
Apple IIGS system ROM

• Size: 32.0 KB / 128.0 KB / 256.0 KB
• Aliases: ROM.01, ROM.03, APPLE2GS.ROM, APPLE2GS.ROM2, xgs.rom, XGS.ROM, Rom03gd, 342-0077-b
• Validation: size
• Source: gsplus/src/config.c:136, gsplus/src/config.c:477-480, gsplus/src/config.c:1260-1317
• Collection copy: bios/Apple/Apple IIGS/ROM
• Platforms: batocera ROM1, misterfpga Apple-IIgs/boot1.rom, recalbox apple2gs1.rom, retrobat APPLE2GS.ROM, retrodeck bios/APPLE2GS.ROM
• Accepted sizes: 32768 (Apple //e), 131072 (ROM 01), 262144 (ROM 03)

c600.rom optional in repo HLE fallback #
Disk II controller PROM (slot 6)

• Size: 256 B
• Aliases: controller.rom, disk.rom, DISK.ROM, diskII.prom
• Validation: size
• Source: gsplus/src/config.c:488-489, gsplus/src/config.c:1336-1388
• Collection copy: bios/Apple/Apple II/AppleIIe_DiskII.rom
• Platforms: bizhawk AppleIIe_DiskII.rom, retrobat AppleIIe_DiskII.rom, disk2-16boot.rom
• Built-in PROM generated from XOR diffs against main ROM

Generated on 2026-10-20T03:49:41Z